González-López, Marcos A., et al. “Chondrodermatitis Nodularis Helicis: Association With Higher Risk of Multimorbidity and Mortality in Middle-Aged Individuals and Implications for Prevention. An Observational Multicenter, Retrospective, Case-Control Investigation in Northern Spain”. Dermatology Practical & Conceptual, vol. 15, no. 3, July 2025, p. 4828, https://doi.org/10.5826/dpc.1503a4828.